Primary press section for paper machines



Sept. 5, 1933- A. H. STANDLEY E'r AL 1,925,972

PRIMARY PREss SECTION PoR PAPER MACHINES Filed July 18. 1932 3Sheets-Sheet 1 Sept, 5, 1933- A. H. sTANDLEY Er AL 1,925,972

PRIMARY PRESS SECTION FOR PAPER MACHINES Filed July 18, 1932 3Sheets-Sheet 2 Sept. 5, 1933,

A. H, STANDLEY ET AL PRIMARY PRESS SECTION POR PAPER MACHINES Filed July18, 1932 3 Sheets-Sheet 3 Cfr Cil

Patented Sept. 5, 1.9733

i T E.

STATES QFFECE;

ran/may Passe' sserioN Fon PArE'rt Maritimes Applicationlllly 13;, 1932iSerial No. 623,278

36 Claims.

This invention relates to primary press sections for pa er machinery.

An important abject of the invention is the provision of a structuremateriallyl facilitating installation of the felts employed in suchapparatus.

A further object of the invention is the provision of means whereby thecouehing of all of the presses of the primary press section may besimultaneously adjusted while still permitting independent adjustment ofcouching in the individual presses.

In the usual primary press construction, couching adjustment must beindividually carried out for each press, requiring the services of anattendant at each end or the roll for each adjustment, so that in asix-press section, twelve separate operations are necessary toadjustment of all of the presses. Since such adjustment is necessarywith a change of grade of the paper produced on a machine, and thechanges of this character are frequent, particularly where job ordersare being produced, it will be obvious that considerable production timeis lost in effecting these changes. Therefore, the provision of a meanswhereby the adjustment of all the presses can be simultaneously eiectedis of considerable advantage.

A still further object of the invention is the provision of an apparatusembodying the features hereinbefore set forth and in which theconstruction is such that the operation of the presses may be veryreadily observed.

A still further object oi the invention is the provision of an apparatusof this character permitting couching adjustment without variation inthe weighting of the upper press rolls.

These and other objects we attain by the construction shown in theaccompanying drawings wherein, for the purpose of illustration, we haveshown a preferred embodiment of our invention and wherein: y

Fig. 1 is a side elevation of a press section constructed in accordancewith our invention;

Fig. 2 is an end elevation of the press section;

Fig. 3 is an enlarged detail sectional view illustrating the manner ofsuspending the upper rails;

Fig. 4. is an enlarged side elevation of one of the presses andassociated mechanism.

Referring new more particularly to the drawings, the numeral indicatesside frames including upper and lower longitudinally-extending rails 11and l2. Rails l2 are fixed with relation to the side frames and support,through removable blocks 1 3, the bearings 14 of the lower press rolls15. rlhese lower press rolls, as is usual in such presses, are made ingraduated sizes, as will be readily noted by comparing the lower pressrolls of the left hand press 16 and of the right hand press or finalpress 17. This graduation may be either complete throughout the pressunit, or may be grouped with two or more presses in the group, thelatter arrangement being morecommonly employed in press constructions.lThis lower frame member further provides pivots for the weight levers18 employed in weighting the upper press rolls. Rails 11 while normallybolted in a normal operative position, as indicated at 19, are in thisnormal position seated upon ledges 20 extending inwardly from thevertical members 21 of side frames 10 which are adjacent thereto, andthese beams have their outer faces spaced from the inner faces of suchvertical members for a purpose presently to appear. Each end of eachbeam 11 has associated therewith a hydraulic jack 22, or other means,whereby it may be vertically shifted, and has further associatedtherewith link mechanism 23 preferably dependent from a cross member 2liconnecting side frames 10, such link members being detachablyconnectable with the rails 11 through removable pins 25 to maintain therails in the elevated position attained by the elevating means 22. Eachrail 11 mounts at each press a pivot 26 for a substantially verticallever 27 to the lower end of which an arm 28, mounting an end bearingfor the associated upper press roll 29, is pivoted. It further mounts abearing for an adjustable link 30 by means of which the free end of thearm 28 may be suspended. This link and the weight lever link 3l are, inthe present illustration, shown as simultaneously engaged with the arm28 although it will be understood 'that but one of these links isoperatively engaged with the arm on any given occasion.

Extending longitudinally Vof the top of each rail l1 is a shaft 32 whichshaft is held against rotation, but mounted for longitudinal movement inbearings 33. Sha-,ft 32 has a threaded section 34 associated with theupper end of each lever 27 and has mounted upon this threaded section acollar 35 having a pin-and-slot connection at 36 with the upper end ofthe lever. The collar 35 is held in adjusted position upon the threadedsection 34 by means of nuts 37 abutting opposite ends thereof. Eachlever 27 or a part moving therewith is preferably provided with an indexpointer 38 cen-acting with Aan index 39 secured to the rail. Atcorresponding ends vof the rails 1l the shafts are provided withthreaded sections 40 mounting worm nuts 4l held against longitudinalmovement with relation to the beam by means of suitable conning brackets42. The shaft 48 extending transversely of the press section has at itsends worms 4&1 for co-action with the worm nuts 41, and it will beobvious that by rotation of this shaft, which may be effected in anysuitable manner, this worm nuts 41 will'Y be simultaneously rotated,thuscausing longitudinal movement of the shafts 32 and a correspondingmovement o the upper ends of levers 27. The levers 27 are graduated invalue; that is to say, these levers are so proportioned that all of theupper press rolls are moved4 through correspondingangles with relationto their lower press rolls. Thus, after each shifting of the press rollsthrough the shafts 32, eachupper press roll will have been shifted withrelation to its associated lower press roll the'same angular distancethat the remaining upper press rolls have been shifted. The individualadjustment afforded by loosening of the nuts 37 associated with theupper ends of the levers of a given press roll will enable any givenpress roll to be placed in a setting at variance to the general settingemployed for the rest of the rolls.

Assuming that the machine has been newly set up and it is desired toclothe the same, this is accomplished as follows: The couchingadjustment is nrst operated to place each upper press roll at zerocouch; that is to say, at a point where the upper press rolls directlyvertically A-overlie the lower press rolls; the links 30 are thenconnected to thefree ends of the arms 28 andlinks 31 are disengagedtherefrom. Links 45 are ,then placed about the extended ends of thejournals of the upper and lower press rolls, as suggested in dottedlines in Fig. 2. The hydraulic jacks 22 will then be operated to elevaterails l1 and remove the weight from the blocks 13 so that they may bereadily removed. After removal of the blocks V13 one loopt of `thelowerr felt `is placed Within the machine and the removable blocks arereplaced. The rolls are then lowered'into position and when the lowerpress rolls are properly secured in place the links 45 are removed. Thetop felt is then placed within the machine, resting on the Ytop pressrolls. One loop of this felt is then passed over the upper face of onerail 1l and disposed between this rail and the adjacent vertical member21. The jacks are then employed to elevate the rails 11 until they maybe suspended from the links 23. With the rails suspended, the jackplungers are withdrawn, thus leaving an open space between the rail 11and the inwardlyextending Yiiange of the vertical ledge 20 upon whichthe rails normally seat, through which the outer loop of the press feltmay be brought around the ends,y of all of the upper press rollssimultaneously and threaded into position between the press rolls. Atthe same time the upper loop of the bottom felt will be placed inposition between the press rolls. When this operation has beencompleted, pressure is againsupplied to the hydraulic jacks until thesejacks support the weight of the rails 11 and their load, the pins 25 areremoved and the rails lowered to their normal position and secured.Employing this structure, the time required vto clothe a press sectionis reduced to minutes asV compared with hours required ordinarily. p 1

Since the structure illustrated, is capable of considerable modificationwithout in any manner departing from the spirit of our invention, we donot wish to be understood as limiting ourselves to the specicarrangement hereinbefore set forth except as hereinafter claimed.

We claim: y

l. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at opposite sides of the presssection, means for vertically moving said beams, and means forconnecting all of the upper press rolls of the section with the beams tobe'moved therewith.

2. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at opposite sides of the presssection, means for vertically moving said beams, means for connectingall of the upper press rolls of the section with the beams to be movedtherewith, and means to suspend such beams in elevated position.

t 3. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at yopposite sides of 'the presssection, means for vertically moving said beams, and means associatedwith each upper press roll for connecting the press roll to said beamstobe supported thereby.

4. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at opposite sides of the presssection, means for vertically moving said beams, means associated witheach upper press roll for connecting the press roll to said beams to besupported thereby and means to suspend such beams in elevated position.

5. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at opposite sides of the presssection, means for vertically moving said beams, and means to connectall of the press rolls of the section to said beams for movementtherewith.

6. In a paper machine, a primary press section, a pair ofvertically-movable beams arranged at opposite sides ofthe press section,means for vertically moving said beams, means to connect all of thepress rolls of the section to said beams for movement therewith, andmeans to suspend the beams in elevated position.

7. In a paper machine and in combination with a primary press sectionincluding a plurality of presses, a pair of shafts and connecting meansbetween each shaft and corresponding ends of theupper press rolls of allof said presses whereby the couching of the upper rolls issimultaneously varied as the shaft lis shifted, and means forsimultaneously shifting said shafts.

8. A device asv claimed in claim 7 wherein the connections between eachshaft and the associated press rolls comprise elements independentlyadjustable to vary the couching of a selected press without varying thecouching of the remaining presses.

9. In combination with a primary press section including a plurality ofdiierent presses having rolls of different diameters, means operativelyVconnecting all of the upper press rolls to simultaneously move saidrolls to vary the couching thereof through a predetermined degree angle.

10. In a paper machine, a primary press section comprising a pluralityof presses, a pair of vertically movable beams, an arm permanently upperrolls of said presses to said rails for movement therewith, means toraise and lower the rails, and means to support the rails in raised andlowered positions..

12. In a paper machine, a plurality of presses, a pair of rails, meansto connect any or all of the upper rolls of said presses to said railsfor movement therewith, means to raise and lower the rails, and means tosupport the rails in raised and lowered positions, and means supportingthe rails in lowered positions being constructed and arranged to permitdisposition of an endless carrier with one loop thereof on the uppersurface of the upper press rolls and the other loop thereof outwardly ofthe means supporting one of the rails in raised position.

13. In a paper machine, a plurality of presses, a pair of rails, meansto connect any or all of the upper rolls of said presses to said railsfor movement therewith, means to raise and lower the rails, and means tosupport the rails in raised and lowered positions, the means to raiseand K lower at least one of the rails being withdrawable when the railsare in raised position to thereby permit passage of a loop of a carrierbetween the rail and the means supporting the same when lowered.

14. In a paper machine, a plurality of presses, a pair of rails, meansto connect any or all of the upper rolls of said presses to said railsfor movement therewith, means to raise and lower the rails, and means tosupport the rails in raised and lowered positions, the means supportingthe rails in lowered positions being constructed and arranged to permitdisposition of an endless carrier with one loop thereof on the uppersurface of the upper press rolls and the other loop thereof outwardly ofthe means supporting one of the rails in raised position, the means toraise and lower at least oneof the rails being witlidrawable when therails are in raised position to thereby permit passage of a loop of acarrier between the rail and the means supporting the same when lowered.l

15, In a paper machine and in combination with a primary press sectionincluding a plurality of presses, means to simultaneously vary thecouching of the upper press rolls of all of the presses.

16. In a paper machine and in combinationwith a primary press sectionincluding a plurality of presses, longitudinally movable membersassociated with corresponding ends of the upper press rolls of all ofsaid presses, means to simultaneously longitudinally move said membersand operative connections between said members and `the upper rolls ofthe presses whereby the said upper rolls are shifted longitudinally ofthe press section as the members are shifted longitudinally.

17. In a press including the usual upper and lower rolls, means at theends of the upper roll supporting the upper roll for transverse movementwith relation to the lower roll, and means to simultaneously shift saidsupporting means transversely of the upper roll.

i8. In a press including the usual upper and lower rolls, means at theends of the upper roll supporting the upper roll for transverse movementwith relation to the lower roll, means to simultaneously shift saidsupporting means transversely of the upper roll, vertically movablemembers at each. end of the upper roll and supporting said shiftingmeans, means to vertically move said members and means to connect theupper press roll to said members to move therewith.

19. In a press including the usual upper and lower press rolls, supportsat the ends of the upper press roll, levers pivoted on said supports andswinging in vertical planes Ytransverse to the lower press roll, ,armshaving bearings for the upper press roll pivoted to said levers, andmeans for simultaneously shifting said levers about the pivots thereof.

20. In a press including the usual upper anc lower press rolls, supportsat the ends of the upper press roll, levers pivoted on said supports andswinging in vertical planes transverse to the lower press roll, armshaving bearings for the upper press roll pivoted to said levers, andweight levers operatively supported from said arms.

21. In a press including the usual upper and lower press rolls, supportsat the ends of the upper press roll, levers pivoted on said supports andswinging in vertical planes transverse to the lower press roll, armshaving bearings for the upper press roll pivoted to said levers, meansfor simultaneously shifting said levers about the pivots thereof, andweight levers operatively supported from said arms.

22. In a press including the usual upper and lower press rolls, supportsat the ends of the upper press roll, levers pivoted on said supportspivots thereof, and means to simultaneously elel vate said supports.

23. In a cylinder paper machine, a primary press section and meansconnecting the upper press rolls of all of the presses of said sectionsfor simultaneously moving said upper press rolls longitudinally of thepress section.

24. In a paper machine, a primary press section, a pair of movable railsextending adjacent the ends of all of the upper press rolls of saidsection, locating arms for said press roll linked to said rails andmeans to elevate the rails whereby to provide a line of free accessbetween the press rolls of all presses simultaneously.

25. In a paper machine, a primary press section, a pair of movable railsextending adjacent the ends of all of the upper press rolls of saidsection, locating arms for said press roll linked to said rails, meansto elevate the rails, means to connect the lower roll of each press tothe upper roll thereof and removable bearing supports for the lower rollof each press.

26. The combination in a paper machine including a plurality of presseseach including a frame and upper and lower press rolls, of railsextending longitudinally of the machine and adjacent the ends of all ofsaid presses, means to supportingly connect each of the rolls of saidpresses to said rails and means to vertically shift said rails.

27. The combination in a paper machine including a plurality of presseseach including a frame and upper and lower press rolls, of railsextending longitudinally of the machine and adjacent the ends of all ofsaid presses, means to supportingly connect each of the rolls of saidpresses to said rails, means to vertically shift said rails, and meansto support the rails in elevated positions.

28. The combination in a paper machine including a plurality of presseseach including a frame and upper and lower press rolls, of railsextending longitudinally of the machine and adjacent the ends of all ofsaid presses, means to Vsupportingly connect each of the rolls of saidpresses tosaid rails, means to' vertically shift said rails, means tosupport the rails lin elevated positions, and removable bearing blocksfor the lower rolls of said presses. d Y

29. In a press including the usual upper and lower press rolls, supportsat the ends of the upper press roll, levers pivoted on said supports andswinging in vertical planesA transverse to the lower press roll, armshaving bearings for the upper press roll pivoted to said levers, meansfor simultaneously shifting said levers about the pivots thereof, andmeans to independentlyr shift said levers about the pivot thereof.

30. In a press including the usual upper and lower press rolls,.supports at the ends ofjthe upper press roll, levers pivoted on saidsupports and swinging in vertical planes transverse to the lower pressroll, arms having bearings for the upper press roll pivoted to saidlevers, means for simultaneously shifting said levers about the pivotsthereof, and means to relatively adjust the positions of said levers.

31. In a paper machine and in combination with a primary press sectionincluding a plurality of presses, means to simultaneously vary thecouching of the upper press rolls of all of the presses, and means toindependently adjust the couching of said press rolls.

32. The combination with a plurality of presses of means common vto andpermanently associated with all of said'presses to elevate the rollsthereof and means to selectively connect the rolls of said presses tosaid means.

33. In a press for paper machines, elevator means connected with theopposite ends of the upper press roll for vertically moving the pressroll, the connections between said elevator means and the press rollincluding elements for varying the couching of the upper press roll.

34. In a press for paper machines, elevator means connected with'theopposite ends of the upper press roll for vertically moving the pressroll, the connections between said elevator means and the press rollincluding elements for varying the couching of the upper press roll, andmeans to simultaneously actuate said elements.

35. In a paper machine, a primary press section,r means tosimultaneously elevate the upper rolls of said section, and means tosimultaneously vary the eouching of the upper rolls of said press.

36. In a press including upper and lower press rolls, vertically-movablemeans, levers pivoted to said vertically-movable means and havingvertically-extending portions, means connecting saidvertically-extending portions and the upper press roll, and means tosimultaneously rotate said levers about the pivots thereof.

ALBERT H. STANDLEY. JACOB EDGE. EDWARD T. STREET.

